package com.bilibili.juc.me;

import java.util.concurrent.ConcurrentHashMap;

public class ConcurrentHashMapDemo {
    public static void main(String[] args) {
        ConcurrentHashMap<String,Integer> map = new ConcurrentHashMap<>(7);
        map.put("a",10);
        System.out.println(map.get("a"));
        System.out.println(map);
    }
}
